/////////////////////////////////////////////////////////////////////////////
-// Name: cursor.cpp
+// Name: src/gtk/cursor.cpp
// Purpose:
// Author: Robert Roebling
// Id: $Id$
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-
-#ifdef __GNUG__
-#pragma implementation "cursor.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
#include "wx/cursor.h"
-#include "gdk/gdk.h"
+#ifndef WX_PRECOMP
+ #include "wx/window.h"
+ #include "wx/app.h"
+ #include "wx/image.h"
+ #include "wx/bitmap.h"
+ #include "wx/log.h"
+#endif // WX_PRECOMP
+
+#include <gtk/gtk.h>
//-----------------------------------------------------------------------------
// wxCursor
//-----------------------------------------------------------------------------
-class wxCursorRefData: public wxObjectRefData
+class wxCursorRefData: public wxGDIRefData
{
- public:
-
+public:
wxCursorRefData();
- ~wxCursorRefData();
+ virtual ~wxCursorRefData();
+
+ virtual bool IsOk() const { return m_cursor != NULL; }
GdkCursor *m_cursor;
};
wxCursorRefData::~wxCursorRefData()
{
- if (m_cursor) gdk_cursor_destroy( m_cursor );
+ if (m_cursor) gdk_cursor_unref( m_cursor );
}
//-----------------------------------------------------------------------------
-#define M_CURSORDATA ((wxCursorRefData *)m_refData)
+#define M_CURSORDATA static_cast<wxCursorRefData*>(m_refData)
-IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
+IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxGDIObject)
wxCursor::wxCursor()
{
}
-wxCursor::wxCursor( int cursorId )
+void wxCursor::InitFromStock( wxStockCursor cursorId )
{
m_refData = new wxCursorRefData();
GdkCursorType gdk_cur = GDK_LEFT_PTR;
switch (cursorId)
{
- case wxCURSOR_HAND: gdk_cur = GDK_HAND1; break;
+ case wxCURSOR_BLANK:
+ {
+ const char bits[] = { 0 };
+ const GdkColor color = { 0, 0, 0, 0 };
+
+ GdkPixmap *pixmap = gdk_bitmap_create_from_data(NULL, bits, 1, 1);
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(pixmap,
+ pixmap,
+ &color,
+ &color,
+ 0, 0);
+ g_object_unref(pixmap);
+ }
+ return;
+
+ case wxCURSOR_ARROW: // fall through to default
+ case wxCURSOR_DEFAULT: gdk_cur = GDK_LEFT_PTR; break;
+ case wxCURSOR_RIGHT_ARROW: gdk_cur = GDK_RIGHT_PTR; break;
+ case wxCURSOR_HAND: gdk_cur = GDK_HAND2; break;
case wxCURSOR_CROSS: gdk_cur = GDK_CROSSHAIR; break;
case wxCURSOR_SIZEWE: gdk_cur = GDK_SB_H_DOUBLE_ARROW; break;
case wxCURSOR_SIZENS: gdk_cur = GDK_SB_V_DOUBLE_ARROW; break;
+ case wxCURSOR_ARROWWAIT:
case wxCURSOR_WAIT:
case wxCURSOR_WATCH: gdk_cur = GDK_WATCH; break;
case wxCURSOR_SIZING: gdk_cur = GDK_SIZING; break;
case wxCURSOR_LEFT_BUTTON: gdk_cur = GDK_LEFTBUTTON; break;
case wxCURSOR_MIDDLE_BUTTON: gdk_cur = GDK_MIDDLEBUTTON; break;
case wxCURSOR_RIGHT_BUTTON: gdk_cur = GDK_RIGHTBUTTON; break;
+ case wxCURSOR_BULLSEYE: gdk_cur = GDK_TARGET; break;
+
+ case wxCURSOR_POINT_LEFT: gdk_cur = GDK_SB_LEFT_ARROW; break;
+ case wxCURSOR_POINT_RIGHT: gdk_cur = GDK_SB_RIGHT_ARROW; break;
/*
case wxCURSOR_DOUBLE_ARROW: gdk_cur = GDK_DOUBLE_ARROW; break;
case wxCURSOR_CROSS_REVERSE: gdk_cur = GDK_CROSS_REVERSE; break;
case wxCURSOR_BASED_ARROW_UP: gdk_cur = GDK_BASED_ARROW_UP; break;
case wxCURSOR_BASED_ARROW_DOWN: gdk_cur = GDK_BASED_ARROW_DOWN; break;
*/
+
default:
- wxFAIL_MSG("unsupported cursor type");
+ wxFAIL_MSG(wxT("unsupported cursor type"));
// will use the standard one
-
- case wxCURSOR_ARROW:
break;
}
M_CURSORDATA->m_cursor = gdk_cursor_new( gdk_cur );
}
-wxCursor::wxCursor( const wxCursor &cursor )
+
+// used in the following two ctors
+extern GtkWidget *wxGetRootWindow();
+
+wxCursor::wxCursor(const wxString& cursor_file,
+ wxBitmapType type,
+ int hotSpotX, int hotSpotY)
{
- Ref( cursor );
+ /* TODO: test this code! */
+
+ // Must be an XBM file
+ if (type != wxBITMAP_TYPE_XPM) {
+ wxLogError("Invalid cursor bitmap type '%d'", type);
+ return;
+ }
+
+ // load the XPM
+ GdkBitmap *mask = NULL;
+ GdkBitmap *data = gdk_pixmap_create_from_xpm( wxGetRootWindow()->window,
+ &mask, NULL, cursor_file.mb_str() );
+ if (!data)
+ return;
+
+ // check given hotspot
+ gint w, h;
+ gdk_drawable_get_size( data, &w, &h );
+ if (hotSpotX < 0 || hotSpotX >= w)
+ hotSpotX = 0;
+ if (hotSpotY < 0 || hotSpotY >= h)
+ hotSpotY = 0;
+
+ // create the real cursor
+ m_refData = new wxCursorRefData;
+ M_CURSORDATA->m_cursor =
+ gdk_cursor_new_from_pixmap( data, mask,
+ wxBLACK->GetColor(), wxWHITE->GetColor(),
+ hotSpotX, hotSpotY );
+
+ g_object_unref (data);
+ g_object_unref (mask);
}
-wxCursor::~wxCursor()
+wxCursor::wxCursor(const char bits[], int width, int height,
+ int hotSpotX, int hotSpotY,
+ const char maskBits[], const wxColour *fg, const wxColour *bg)
{
+ if (!maskBits)
+ maskBits = bits;
+ if (!fg)
+ fg = wxBLACK;
+ if (!bg)
+ bg = wxWHITE;
+ if (hotSpotX < 0 || hotSpotX >= width)
+ hotSpotX = 0;
+ if (hotSpotY < 0 || hotSpotY >= height)
+ hotSpotY = 0;
+
+ GdkBitmap *data = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) bits, width, height );
+ GdkBitmap *mask = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) maskBits, width, height);
+
+ m_refData = new wxCursorRefData;
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(
+ data, mask, fg->GetColor(), bg->GetColor(),
+ hotSpotX, hotSpotY );
+
+ g_object_unref (data);
+ g_object_unref (mask);
}
-wxCursor& wxCursor::operator = ( const wxCursor& cursor )
+#if wxUSE_IMAGE
+
+static void GetHotSpot(const wxImage& image, int& x, int& y)
{
- if (*this == cursor)
- return (*this);
+ if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_X))
+ x = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X);
+ else
+ x = 0;
- Ref( cursor );
+ if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y))
+ y = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y);
+ else
+ y = 0;
- return *this;
+ if (x < 0 || x >= image.GetWidth())
+ x = 0;
+ if (y < 0 || y >= image.GetHeight())
+ y = 0;
}
-bool wxCursor::operator == ( const wxCursor& cursor ) const
+wxCursor::wxCursor( const wxImage & image )
{
- return m_refData == cursor.m_refData;
-}
+ int w = image.GetWidth() ;
+ int h = image.GetHeight();
+ bool bHasMask = image.HasMask();
+ int hotSpotX, hotSpotY;
+ GetHotSpot(image, hotSpotX, hotSpotY);
+ m_refData = new wxCursorRefData;
+ wxImage image_copy(image);
+
+ GdkDisplay* display = gdk_drawable_get_display(wxGetRootWindow()->window);
+ if (gdk_display_supports_cursor_color(display))
+ {
+ if (!image.HasAlpha())
+ {
+ // add alpha, so wxBitmap will convert to pixbuf format
+ image_copy.InitAlpha();
+ }
+ wxBitmap bitmap(image_copy);
+ wxASSERT(bitmap.HasPixbuf());
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixbuf
+ (
+ display,
+ bitmap.GetPixbuf(),
+ hotSpotX, hotSpotY
+ );
+ return;
+ }
-bool wxCursor::operator != ( const wxCursor& cursor ) const
-{
- return m_refData != cursor.m_refData;
+ unsigned long keyMaskColor = 0;
+ GdkPixmap* mask;
+ if (bHasMask)
+ {
+ keyMaskColor = wxImageHistogram::MakeKey(
+ image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue());
+ // get mask before image is modified
+ wxBitmap bitmap(image, 1);
+ mask = bitmap.GetMask()->GetBitmap();
+ g_object_ref(mask);
+ }
+ else
+ {
+ const int size = ((w + 7) / 8) * h;
+ char* bits = new char[size];
+ memset(bits, 0xff, size);
+ mask = gdk_bitmap_create_from_data(
+ wxGetRootWindow()->window, bits, w, h);
+ delete[] bits;
+ }
+
+ // modify image so wxBitmap can be used to convert to pixmap
+ image_copy.SetMask(false);
+ int i, j;
+ wxByte* data = image_copy.GetData();
+ for (j = 0; j < h; j++)
+ {
+ for (i = 0; i < w; i++, data += 3)
+ {
+ //if average value is > mid grey
+ if (int(data[0]) + data[1] + data[2] >= 3 * 128)
+ {
+ // wxBitmap only converts (255,255,255) to white
+ data[0] = 255;
+ data[1] = 255;
+ data[2] = 255;
+ }
+ }
+ }
+ wxBitmap bitmap(image_copy, 1);
+
+ // find the most frequent color(s)
+ wxImageHistogram histogram;
+ image.ComputeHistogram(histogram);
+
+ long colMostFreq = 0;
+ unsigned long nMost = 0;
+ long colNextMostFreq = 0;
+ unsigned long nNext = 0;
+ for ( wxImageHistogram::iterator entry = histogram.begin();
+ entry != histogram.end();
+ ++entry )
+ {
+ unsigned long key = entry->first;
+ if ( !bHasMask || (key != keyMaskColor) )
+ {
+ unsigned long value = entry->second.value;
+ if (value > nMost)
+ {
+ nNext = nMost;
+ colNextMostFreq = colMostFreq;
+ nMost = value;
+ colMostFreq = key;
+ }
+ else if (value > nNext)
+ {
+ nNext = value;
+ colNextMostFreq = key;
+ }
+ }
+ }
+
+ wxColour fg = wxColour ( (unsigned char)(colMostFreq >> 16),
+ (unsigned char)(colMostFreq >> 8),
+ (unsigned char)(colMostFreq) );
+
+ wxColour bg = wxColour ( (unsigned char)(colNextMostFreq >> 16),
+ (unsigned char)(colNextMostFreq >> 8),
+ (unsigned char)(colNextMostFreq) );
+
+ int fg_intensity = fg.Red() + fg.Green() + fg.Blue();
+ int bg_intensity = bg.Red() + bg.Green() + bg.Blue();
+
+ if (bg_intensity > fg_intensity)
+ {
+ //swap fg and bg
+ wxColour tmp = fg;
+ fg = bg;
+ bg = tmp;
+ }
+
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap
+ (
+ bitmap.GetPixmap(),
+ mask,
+ fg.GetColor(), bg.GetColor(),
+ hotSpotX, hotSpotY
+ );
+
+ g_object_unref (mask);
}
-bool wxCursor::Ok() const
+#endif // wxUSE_IMAGE
+
+wxCursor::~wxCursor()
{
- return (m_refData != NULL);
}
GdkCursor *wxCursor::GetCursor() const
return M_CURSORDATA->m_cursor;
}
+wxGDIRefData *wxCursor::CreateGDIRefData() const
+{
+ return new wxCursorRefData;
+}
+
+wxGDIRefData *wxCursor::CloneGDIRefData(const wxGDIRefData *data) const
+{
+ return new wxCursorRefData(*static_cast<const wxCursorRefData *>(data));
+}
+
//-----------------------------------------------------------------------------
// busy cursor routines
//-----------------------------------------------------------------------------
-extern wxCursor *g_globalCursor;
+/* Current cursor, in order to hang on to
+ * cursor handle when setting the cursor globally */
+wxCursor g_globalCursor;
-static wxCursor *gs_savedCursor = NULL;
+static wxCursor gs_savedCursor;
+static int gs_busyCount = 0;
-void wxEndBusyCursor()
+const wxCursor &wxBusyCursor::GetStoredCursor()
{
- wxCHECK_RET( gs_savedCursor && gs_savedCursor->Ok(),
- "calling wxEndBusyCursor() without wxBeginBusyCursor()?" );
+ return gs_savedCursor;
+}
- wxSetCursor(*gs_savedCursor);
- delete gs_savedCursor;
- gs_savedCursor = NULL;
+const wxCursor wxBusyCursor::GetBusyCursor()
+{
+ return wxCursor(wxCURSOR_WATCH);
}
-void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) )
+static void InternalIdle(const wxWindowList& list, GdkDisplay*& display)
{
- wxASSERT_MSG( !gs_savedCursor,
- "forgot to call wxEndBusyCursor, will leak memory" );
+ wxWindowList::const_iterator i = list.begin();
+ for (size_t n = list.size(); n--; ++i)
+ {
+ wxWindow* win = *i;
+ if (display == NULL && win->m_widget && win->m_widget->window)
+ display = gdk_drawable_get_display(win->m_widget->window);
+ win->OnInternalIdle();
+ InternalIdle(win->GetChildren(), display);
+ }
+}
- gs_savedCursor = new wxCursor;
- if ( g_globalCursor && g_globalCursor->Ok() )
- *gs_savedCursor = *g_globalCursor;
- else
- *gs_savedCursor = wxCursor(wxCURSOR_ARROW);
- wxSetCursor(wxCursor(wxCURSOR_WATCH));
+void wxEndBusyCursor()
+{
+ if (--gs_busyCount > 0)
+ return;
+
+ g_globalCursor = gs_savedCursor;
+ gs_savedCursor = wxNullCursor;
+ GdkDisplay* unused = NULL;
+ InternalIdle(wxTopLevelWindows, unused);
+}
+
+void wxBeginBusyCursor(const wxCursor* cursor)
+{
+ if (gs_busyCount++ > 0)
+ return;
+
+ wxASSERT_MSG( !gs_savedCursor.Ok(),
+ wxT("forgot to call wxEndBusyCursor, will leak memory") );
+
+ gs_savedCursor = g_globalCursor;
+ g_globalCursor = *cursor;
+ GdkDisplay* display = NULL;
+ InternalIdle(wxTopLevelWindows, display);
+ if (display)
+ gdk_display_flush(display);
}
bool wxIsBusy()
{
- return gs_savedCursor != NULL;
+ return gs_busyCount > 0;
}
void wxSetCursor( const wxCursor& cursor )
{
- if (g_globalCursor) (*g_globalCursor) = cursor;
+ g_globalCursor = cursor;
+ wxTheApp->WakeUpIdle();
}
-
-
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